#include<stdio.h>
int main()
{
    int a[]={1,2,3,4,5},i,j,s=0;
    j = 1;
    for(i = 4;i>=0;i--)
    {
        s=s+a[i]*j;
        j=j*10;
    }
    printf("s=%d\n",s);
    return 0;
}